Remove deprecated funcs/types from configauth (open-telemetry#6719)

Signed-off-by: Bogdan Drutu <bogdandrutu@gmail.com>

Signed-off-by: Bogdan Drutu <bogdandrutu@gmail.com>

.chloggen/rmconfigauth.yaml

@@ -0,0 +1,11 @@
+# One of 'breaking', 'deprecation', 'new_component', 'enhancement', 'bug_fix'
+change_type: breaking
+
+# The name of the component, or a single word describing the area of concern, (e.g. otlpreceiver)
+component: configauth
+
+# A brief description of the change.  Surround your text with quotes ("") if it needs to start with a backtick (`).
+note: Remove deprecated funcs/types from `configauth`
+
+# One or more tracking issues or pull requests related to the change
+issues: [6719]

config/configauth/configauth.go

@@ -12,6 +12,9 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+// Package configauth implements the configuration settings to
+// ensure authentication on incoming requests, and allows
+// exporters to add authentication on outgoing requests.
 package configauth // import "go.opentelemetry.io/collector/config/configauth"
 
 import (